Four Fours/Lemmata/Three Fours/40/Solutions
< Four Fours | Lemmata | Three Fours | 40
Jump to navigation
Jump to search
Puzzle: Three Fours: $40$
Using exactly $3$ instances of the number $4$, the task is to write an expression for $40$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $40 = \dfrac {4 \times 4} {.4}$
Solution $2$
- $40 = \dfrac {4!} {\sqrt{. \dot 4} } + 4$